Furnace.



Patented Nov. 13, I900. C. M. BATES.

FURNACE.

(Application filed Mar. 5, 1900.

2'Shaeta-Sheat. I.

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Patented Nov. l3, I900. C. M. BATES.

FURNACE.

(Application filed Mar. 5, 1900.

2 Sheet'sSheat 2.

(No Model.)

in: means wzrzas 00., PHOTO-LYING. WASHINGTON. n. c

UNITED STATES PATENT FFICE.

CHE$TER M. BATES, OF WILKES-BARRE, PENNSYLVANIA, ASSIGNOR OF ONE-HALF TO FREDERICK N'. RUGGLES, OF SAME PLACE.

FURNACE.

SPECIFICATION forming part of Letters Patent No. 661,654, dated November 13, 1900. Application filed March 5,1900. Serial No. 7,323. (No model.)

To aZZ whom, it may concern.-

Be it known that I, CHESTER M. BATES, a citizen of the United States of America, residing at Wilkes-Barre, in the county of Luzerne and State of Pennsylvania, have invented certain new and useful Improvements in Furnaces, of which the following is a specification, reference being had therein to the accompanying drawings. 5

This invention relates to furnaces for heating buildings, and more particularly to hotair furnaces.

One object of the invention is to produce a furnace having the usual fire-box and combustion-chamber, with novel means for utilizin g the heat by causing the products of combustion to travel circuitonsly to the smokeuptake.

A further object of the invention is to provide self-cleaning pipes which are in communication with the combustionchamber near its top; furthermore, the object of the invention is to provide for a direct draft from the fire-box to the smoke-uptake, the draft tube being under control of a damper operated by a rod which protrudes near the fueldoor of the furnace.

A further object of the invention is to provide for the removal of soot and the like which will collect on the baffle-plates for directing the course of the products of combustion.

With the above and other objects in view the invention consists in the details of construction and in the arrangement and combination of parts to be hereinafter more fully set forth and specifically claimed.

In describing the invention in detail reference will be had to the accompanying drawof one of the chambers for carrying the prodnets of combustion with the inner wall broken away; and Fig. 4C is a perspective view of a section of a radiator-chamber and tube, showing a modified connecting means.

, of the fuel-door.

In the drawings, 1 indicates a drum of the combustion-chamber, having a series of outwardly-disposed flanges 2 surrounding the openings formed therein near the top.

Partially surrounding the fire box and drum, but stationed at a distance therefrom, are the chambers 3, having flanges 4 projecting from the inner wall. Interposed between the drum and chambers and communicating therewith are a number of tubes 5, having outwardly-inclined lower walls 6 for the purpose of discharging the deposits of soot within the chambers. The walls of the chambers in turn have cleaning-doors 7 slightly above the plane of the baffle-plates, through which access is had to the interior. The two chambers 3 abut at the rear of the furnace and are separated in front for the accommodation of the fuel-door a and ash-door Z).

A draft-tube Sis provided between the drum and one of the chambers controlled by a damper which is suitably pivoted in the drafttube. A damper-rod 10 is curved around the drum and terminates in a handle at one side In the rear the outer wall of each chamber isprovided with ashort tube 12, fitting in a hole of a hood 11, said hood having a smoke-uptake 14 and a check-damper 15. The holes of the hood are so positioned with relation to the tubes 12 as to hold the rear of the radiating-chambers together when the parts are assembled. The tube 12 of one chamber is in line with the draft-tube 8 for the purpose of creating a direct communication from the .fire-boX to the smokeuptake when occasion requires. When the fire has gained headway and combustion can be supported by an indirect draft, the draft-pipe is closed by the damper. The products of combustion will then be drawn off through the .tubes 5, the chambers 3, and the tubes 12 to the smoke-uptake. Each chamber 3 is provided with a series of baffieplates, which are preferably arranged in the following orderviz., with the upper plate 13 extending horizontally from the front of the chamber and terminating near the rear wall, the plate 14 having its end in contact with the rear end of the chamber above the tube12 on approximately the same horizontal plane as the n pper plate and extending horizontallya short distance, then inclined, as shown at 15, and ending in a horizontal section, terminating at a point some distance from the front wall. The arrangement of the baffie-plates is well shown in Fig. 3, while the dotted lines of Fig.

l serve as a further means for tracing the course of the products of combustion.

In practice it is my purpose to have cleaning-doors just above the bafiie-plates.

The casing A, having a dome B and hot air pipes 0, being in construction the same as those ordinarily employed in furnaces, need not be described at length.

It will be understood that the openings for the delivery of fuel to the fire-box and the opening for the withdrawal of ashes from the ash-pit will be provided with doors.

In the modification shown in Fig. 4 curved flanges a surround the openings near the top of the drum of the combustion-chamber on three sides, and the tubes 5 are provided with i beading a which is slidable in the ways formed by the flanges. The radiating-cham bers and the outer ends of the tubes will have the curved flanges and beading, respectively, when the modified fastening is employed. The parts may be constructed of cast-iron or sheet metal, as fancy may dictate.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a furnace, a radiator in two sections, each section having a short tube projecting from the rearof the outer wall, a hood adapted to engage said short tubes and hold said sections together.

2. The combination in a furnace, a combustion-chamber, two radiating-chambers partially surrounding the combustion-chamber but stationed a distance therefrom,tubes having outwardly-inclined lower walls connecting the combustion-chamber and radiators, a draft-tube between the drum of the combustion-chamber and one of the radiating-chambers, a damper in said tube, operating means for the damper, ashort tube projecting from the outer wall of each radiating-chamber, a hood having holes adapted to fit on said tubes, a smoke-uptake for the hood, a series of baffleplates in each radiating-chamber, a casing having a dome, and hot-air pipes, as and for the purpose described.

openings near the top, grooved flanges surrounding the openings of the combustionchamber and radiators, tubes having beading interposed therebetween, said beading being adapted to fit on the grooved flanges, a draft-tube between the combustion-chamber and one of the radiating-chambers, a damper in the draft-tube, a damper-rod, said rod being curved around the drum and terminating in a handle at one side of the fuel-door, a short tube projecting from the rear of the outer wall of each chamber, one of the short tubes being in a line with the draft-tube, a hood having holes so positioned with relation to the short tubes as to fit on the short tubes and hold the rear ends of the radiating-chambers together, a smoke-uptake for the hood, a series of baffie-plates in each radiator arranged with an upper plate extending horizontally from the front of the chamber and terminating near the rear wall, and a lower plate having its end in contact with the rear end of the chamber on approximately the same horizontal plane as the upper baffleplate and extending horizontallya short distance, then inclined and ending in a horizontally-disposed section terminating some distance from the front wall, cleaning-doors in the outer wall of each chamber slightly above the plane of the baffle-plates, a casing having a dome, and hot-air pipes, as and for the purpose described.

4. In a furnace, the combination of the combustion-chamber and radiators,each having openings near the top, of tubes connecting and suitably secured to the edges of the openings of the combustion-chamber and radiators; said tubes having their lower walls inclined downward from the combustionchamber, so as to rapidly increase the size of the tubes in the direction of the radiator.

5. In a. furnace, the combination of the co mbustion-chamber and radiators,each having openings near the top, of tubes connecting and adjustably secured to the edges of the openings of the combustion-chamber and radiators; said tubes having their lower walls inclined downward from the combustionchamber so as to rapidly increase the size of the tubes in the direction of the radiator.

In testimony whereof I affiX my signature in the presence of two witnesses.

3. The combination in a furnace,a combustion-chamber having openings near the top, two radiators partially surrounding the combustion -charnber but stationed a distance therefrom abutting at the rear, and having CHESTER M. BATES.

Witnesses! B. W. DAVIS, HARRY F. GEDDEs. 

